kernel_lock.c uses DECLARE_MUTEX, up() and down() without explicitly
including asm/semaphore.h.  This is fragile and leaves it vulnerable
to breakage during header reorganisations.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
---
 lib/kernel_lock.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/lib/kernel_lock.c b/lib/kernel_lock.c
index 812dbf0..fbc11a3 100644
--- a/lib/kernel_lock.c
+++ b/lib/kernel_lock.c
@@ -8,6 +8,7 @@
 #include <linux/smp_lock.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
+#include <asm/semaphore.h>
 
 /*
  * The 'big kernel semaphore'
-- 
1.5.4.3

--
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